Chapter one presents a discussion of flight-test and analysis methods for some selected helicopter vibration studies. The use of a mechanical shaker in flight to determine the structural response is reported. A method for the analytical determination of the natural coupled frequencies and mode shapes of vibrations in the vertical plane of tandem helicopters is presented in Chapter two. The coupled mode shapes and frequencies are then used to calculate the response of the helicopter to applied oscillating forces.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Flight and Analytical Methods for Determining the Coupled Vibration Response of Tandem Helicopters


    Contributors:

    Publication date :

    1957-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English



    Flight and analytical methods for determining the coupled vibration response of tandem helicopters

    Yeates, John E. / Brooks, George W. / Houbolt, John C. | TIBKAT | 1957


    Flight simulation for helicopters

    Engineering Index Backfile | 1955


    Helicopters and instrument flight

    Pogue, L.W. | Engineering Index Backfile | 1959


    Flight testing of helicopters

    Stewart, W. | Engineering Index Backfile | 1948


    Flight simulation for helicopters

    Engineering Index Backfile | 1954